Weather Engine vs WeatherStamp

**Weather Engine** Weather Engine is a professional weather visualization and forecasting application designed for users who want to understand weather beyond ordinary forecasts. Unlike traditional weather apps, Weather Engine combines numerical weather prediction, satellite imagery, radar observations, and interactive weather maps — now including full aviation altitude charts — into a single intuitive interface. Powered by NOAA Global Forecast System (GFS) data and a high-performance native weather engine, the application delivers smooth, precise visualization of atmospheric conditions directly on your device, from the surface up to the jet stream. **Key Features** - NOAA Global Forecast System (GFS) forecasts - Real-time satellite imagery - Weather radar observations - Temperature maps and isotherms - Sea-level pressure contours (isobars) - Aviation altitude mode: 850/700/500/300 hPa constant-pressure charts with geopotential height contours and level wind - Wind streamlines with animated flow, from the surface to jet-stream altitude - Relative humidity visualization - Forecast precipitation - Interactive weather timeline - Coastline and border outline overlay, so land and sea stay legible under any weather layer - Touch any location to view detailed weather information - Automatic weather layer management based on observation and forecast availability - Optimized rendering for iPhone and iPad **Aviation Altitude Mode** Weather Engine now goes beyond the surface. Slide from mean sea level up through the standard aviation constant-pressure levels — 850, 700, 500, and 300 hPa — to see the same geopotential height contours and wind fields pilots read on a real constant-pressure chart. Whether you're studying a ridge at 500 hPa or checking jet-stream wind ahead of a flight, the map adjusts contour spacing and range automatically for each level, and animated wind streamlines scale to stay legible even at jet-stream speed. **Professional Weather Analysis** Weather Engine allows users to combine multiple atmospheric variables on one map, making it easy to understand relationships between: - Pressure and wind - Temperature and fronts - Humidity and precipitation - Radar and forecast rainfall - Satellite imagery and cloud systems - Surface conditions and upper-level flow **Built for Global, Seamless Viewing** The map renders continuously wherever you look — panning smoothly across the international date line, staying correctly aligned while rotated, and covering wide regions without gaps, even when zoomed far out over an ocean or a full continent. Radar and rain tiles are rendered at higher fidelity, and the new coastline/border outline option keeps geography readable no matter how many weather layers are stacked on top. **Suitable for** - Weather enthusiasts - Outdoor activities (hiking, camping) - Sailing & fishing - Pilots & drone operators - RF and microwave engineers - Amateur radio operators - Teachers, students, and researchers **Interactive Timeline** Move seamlessly through time to explore past observations, current weather, and future forecasts. Weather layers automatically appear or disappear depending on data availability, and the altitude slider works alongside the timeline so you can track how a pressure surface evolves over the next five days. **Native High-Performance Engine** Combines Flutter with a native C++ weather engine for efficient GRIB2 decoding and smooth visualization of NOAA weather data, tuned with adaptive level-of-detail so contours, heatmaps, and wind particles stay sharp at every zoom level from a single country to a full hemisphere. **Data Sources** - NOAA Global Forecast System (GFS) - Weather Radar - Satellite Imagery **Privacy** Weather Engine does not collect personal weather data. Location access is used only to display weather conditions around your current position.

Time moves on. The weather from that moment can stay. WeatherStamp combines a clear forecast with a personal journal. It helps you understand the sky at a glance, then preserve a day together with its place, time, and weather. FREEZE THE WEATHER RIGHT NOW Save the exact moment where you are with one quick action. Place, date, time, and weather become a snapshot that never changes. Add a title, note, photo taken on the spot, emoji, or a voice note recorded inside the app. REBUILD A DAY FROM THE PAST Choose a date or begin with a photograph. WeatherStamp can read the photo’s available date and location, then recover historical conditions through Apple Weather. When data is unavailable, the app never invents it. WEATHER, EXPLAINED CLEARLY Actual and feels-like temperature, daily low and high, precipitation, wind, UV, sunrise, and sunset are coordinated with useful written guidance. Tap an hour or a day to understand what happens next. Open “More Data” to view, reorder, or hide the available sections. YOUR PLACES Save cities for quick access and choose which ones remain visible on the Home screen. Swipe horizontally between visible places and immediately recognize your current location. PRIVATE AND IN SYNC No third-party account or registration is required. Places and memories remain on your device and in your private iCloud database, ready to sync to other devices using the same Apple Account. NO SUBSCRIPTIONS Your first day is completely ad-free. Starting the next day, a discreet banner may appear and can be removed forever with one in-app purchase. There is no subscription. Weather data is provided by Apple Weather. Historical forecasts, alerts, and individual values depend on the selected place, date, and service coverage.